freeCodeCamp/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/make-a-relational-database.md

---
id: 5e7b9f170b6c005b0e76f08b
title: 建立关系数据库
challengeType: 11
videoId: MQ5z4bdF92U
bilibiliIds:
  aid: 249380678
  bvid: BV1vv411E76L
  cid: 377531786
dashedName: make-a-relational-database
---

# --question--

## --text--

您将使用什么 SQL 命令来检索具有电子邮件地址 `quincy@freecodecamp.org` 的所有用户？

## --answers--

```sql
SELECT Users WHERE email="quincy@freecodecamp.org"
```

---

```sql
SELECT Users WHERE email IS "quincy@freecodecamp.org"
```

---

```sql
SELECT ALL Users WHERE email="quincy@freecodecamp.org"
```

---

```sql
SELECT * FROM Users WHERE email IS "quincy@freecodecamp.org"
```

---

```sql
SELECT * FROM Users WHERE email="quincy@freecodecamp.org"
```

## --video-solution--

5